For those of you diving doubles on NC wrecks or other similar environments, what do you recommend doing? The environment I am thinking of is a dive boat, pretty far offshore, doing two dives. Generally, the first dive is deeper (100'-120') and the second a more shallow dive (50'-80'), but could be just two dives on the same site (i.e. both at 110'). These boats do not have compressors on board and are generally the domain of large single tank divers (Steel 95, 104, 120 or AL100) with pony bottles.
Since double AL80s are usually recommended, I was wondering how you get 2 dives off them? Do you just cut your second dive short so you come up with enough gas? If doing two deep dives, you would either have to cut both dives short or only do one dive since there wouldn't be enough gas in the Al80s to hit NDL twice on a 100'+ wreck with EANx30-32 and still leave a comfortable reserve. Do you carry a singles rig and dive it on your second dive? Do you carry stages?
I can't see any of the steel doubles sets working either since all the temperatures in NC are in the 70's-80's and definitely are in the wetsuit category. If steels were ok, then the problem would be easily solved by doubling up some 95s or 104s.
Thanks in advance for your assistance!
Since double AL80s are usually recommended, I was wondering how you get 2 dives off them? Do you just cut your second dive short so you come up with enough gas? If doing two deep dives, you would either have to cut both dives short or only do one dive since there wouldn't be enough gas in the Al80s to hit NDL twice on a 100'+ wreck with EANx30-32 and still leave a comfortable reserve. Do you carry a singles rig and dive it on your second dive? Do you carry stages?
I can't see any of the steel doubles sets working either since all the temperatures in NC are in the 70's-80's and definitely are in the wetsuit category. If steels were ok, then the problem would be easily solved by doubling up some 95s or 104s.
Thanks in advance for your assistance!